Term
| in most multicellular organisms. the fluid that circulates materials around the body is called: |
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Definition
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Term
| one hemoglobin molecule can bind as many as: |
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Definition
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Term
| in humans, hemoglobin is found: |
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Definition
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Term
| amount of oxygen that binds to hemoglobin depends upon: |
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Definition
all of the other options are true
(pH, amount of oxygen available, temperature) |
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Term
| partial pressure of oxygen is: |
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Definition
| the portion of the barometric pressure produced by oxygen |
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Term
| the oxygen dissociation curve shoes that as the partial pressure of oxygen is decreased to a very low level, the amount of oxygen bound to hemoglobin: |
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Definition
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Term
high transmittance value ('color') indicates:
~might not be on quiz~ |
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Definition
| large amount of oxygen is bond to hemoglobin |
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Term
| decreasing the pH of the blood (making it more acidic): |
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Definition
| moves the oxygen dissociation curve to the right |
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Term
| at PO2 levels around 50mm Hg (approx the same PO2 value found in the tissues), a lower pH: |
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Definition
| decreases the amount of bound oxygen; oxygen; i.e., hemoglobin releases more oxygen to the tissues |
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Term
| cells make hydrogen ions b/c they can produce: |
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Definition
both of the other options are true
(lactic acid ... carbon dioxide...) |
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Term
| hydrogen ions bind to the beta-chains of hemoglobin & decrease the affinity of hemoglobin for oxygen. therefore, lowering the pH: |
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Definition
| moves the oxygen dissociation curve to the right |
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Term
| at the tissues, a low pH pushes the oxygen dissociation curve to the right so that: |
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Definition
| more oxygen is released, which leaves LESS oxygen bound to hemoglobin |
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